Saw dressing and gaging tool



J. c. HlL-BURN;

SAW DRESSING AND GAGING TOOL. I

APPLICATION FILED JAN.29,'I92I.

1 ,420,547. I Patented June 20, 1922.

. 2 SHEETS-SHEET .1.

I 12 aw I J. C. H'ILBURN.

SAW DRESSING AND GAGING TOOL.

APPLICATION-FILED JAN. 29, 1921 Patented June 20, 1922. I

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JAMES CLARENCE Ernst Inn, 0 THORNBURG, AEKaNsAsJ saw DRESSING AND GAGINGTooL.

- Specification of Letters Patent. Patented June 20, 1922.

Application filed January 29 1921. Serial No. 440,974. 7

may be cut long or short, at the will of an operator.

Another object of the invention is to improve generally and to enhancethe utility of devices of that type to which the invention appertains.

In the accompanying drawings Figure 1 shows in side elevation, a deviceconstructed in accordance with the invention;

Figure 2 is a top plan; i v

Figure 3 is an elevation wherein the opposite side of the device isshown from that which appears in Figure 1; and

Figure at is across section on the line fi: of Figure 3.

In carrying out the invention there is provided, a plate or body 1supplied upon one side with an outwardly projecting flange 2 andprovided on its opposite side with a reinforcing bead 20. Brackets 3extend out-- wardly from the body 1, the body having an outwardlyextended ear 4, into which a set screw 5 is threaded. A file 6 is placedagainst the brackets 3 and is held in place by a set screw 5. The flange2 is supplied with a notch 7, so that a screw driver can be usedconveniently to manipulate the set screw- 5. When the file is held asabove described,the tool may be used to dress down the ends of the teethof a saw, in a manner well understood by sawyers. j v

The plate 1 is equipped with outwardly extending lugs 8 on whlch plates9 are mounted, the plates 9 being held in place by screws 10 and 10 Theplates 9 form an abutment, since the teeth of a saw are placedthereagainstoduring an operation which will be described hereinafter.

The numeral 11 denotes an angle bar' fitting against the plate or bodyland extended beneath the innermost lugs 8, the angle bar 11 being heldin place by screws 30. The angle bar 11 includes .an outwardly extendedflange 12 which fits 7 between the innermost lugssg .The plates 9have-thickened extene sions .14 which overhangv the flange 12: at itsends; The flange 12 constitutes a file rest, audit is to be .note'd thatthis flange is not parallel'to the plates'or abutments 9." Thus,

assuming that the tool is in the position shown in Figure 8, one end ofthe flange 12 is 1/82 of an inch (more or less) lower than the other endofthe flange.

The numeral 15 denotes a scale held on the plate 1 by the screws 30. Theplate or body V 1 carries a bar 16, which, with one edge of the anglebar 11,'forms a slot 17. A slide 18 is mounted to move along the anglebar 11 and along the bar 16, and is pointed to coeratein the slot 17,the bolt and wing nut forming"a clamping device, whereby the slide 18maybe held in any desired position.

Suppose that a saw is placed against the plate 1, the ends of the teethof the saw being in engage'mentwith the lower surface of will the toothextendabovetheflange 12. 7 A

The position of the tooth, and, consequently,

the amount that the tooth extends above the flange 12, may be regulatedby placing one edge of the tooth against the edge of the operate withthe scale 15. A bolt and wing nut 19 are connected to, the slide 18 andopslide 18, the slide being held in adjusted l position by the bolt andwing nut 19, and

the position of theslide being determined" by noting the particular markof the scale 15 wherewith the point of the slide coacts. It is clearthat if a file is, reciprocated on the flange 12, so much of the toothas projects beyond the flange, will be cut; oflfas indicated by thedotted line showing in Figure 1, and that more or less of the tooth maybe removed at the will of an operator;

Although the figures given below are arbitrary, if the flange 12 has aslope of 1/32 of an inch, and if there are sixty-four marks on the scale15, an adjustment of approximately 0.002 of an inch in the length of theraker tooth may be secured, since Having thus described the invention,what is claimed is: i

1. A tool for dressing saw teeth, comprising a tooth abutment; a filerest disposed at an acute angle to the abutment; and a slide adjustablelongitudinally of the rest, the slide being adapted to engage one sideof a saw tooth to regulate the amount which said tooth projects beyondthe file rest.

2. A tool for dressing saw teeth, oompris ing a tooth abutment; a filerest disposed at an acute angle to the abutment; a scale eX- tendedlongitutinally of the file rest; and a slide, adjustable longitudinallyof the scale and the, rest, the slide being adapted to engage, one sideof a saw tooth to regulate the amount which said tooth projects beyondthe file rest, and constituting an indicator cooperatlng with the scale.

3. A tool for dressing saw teeth, comprising a body having lateralflanges; a file rest mounted on the frame between the flangesanddisposed'at an acute angle to the flanges; a scale on the frame andextended longitu dinally of the file rest; a slide movable on the framelongitudinally of the file rest and constituting an indicatorcooperating with the scale; and means for clamping'the slide to theframe in adjusted positions longitudinally of the scale, the slide beingadapted toengage one side of saw tooth toregulate the amount which saidtooth projects beyond the file rest.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

JAMES CLARENCE HILBUR N.

- lVitnesses: i

HALL SMITH, B. L. Mamas.

